Sage is also an active ingredient in some natural mouthwashes because its tannins are thought to help kill the bacteria that cause gingivitis. Sage has traditionally been used to treat canker sores, bleeding gums, sore throat, tonsillitis, and laryngitis. Recent laboratory studies support the use of sage to guard against infection-it has demonstrated an ability to fight against several infection-causing bacteria. Some herbalists and, in Germany physicians, recommend gargling hot sage to soothe pain from sore throat and tonsillitis.
Basil tea, made from the fresh or dried herb, may be used to encourage a slight sweat in the early stages of a cold, thus reducing feverishness. A pinch of ground cloves may also be added for flavor and encourage reduction of fever.
Mullein flower tea has a pleasant taste and is good to soothe inflamed conditions of the mucous membrane lining the throat. Also relieves coughing. Put a small handful of the mullein flowers in 1 pint of boiling water. Allow to steep 15 minutes. Strain and sweeten with honey.
fresh Thyme will help break congestion.
eucalyptus kills 80% staph infection bacteria burn the oil to cleanse the air and dab under nose and on chest to aid congestion.
oil of oregano is another strong antibiotic if taken in pure form will burn , I normally will capsule and swallow fast

a little goes a long way here
also just eating oregano fresh is quite beneficial.
bay leaf, tumeric anti-inflammatory